Patent application number | Description | Published |
20080267171 | METHODS AND APPARATUS FOR OBTAINING VARIABLE CALL PARAMETERS SUITABLE FOR USE IN ORIGINATING A SIP CALL VIA A CIRCUIT-SWITCHED NETWORK FROM A USER EQUIPMENT DEVICE - Methods and apparatus for use in processing Session Initiation Protocol (SIP) calls in a network environment which includes a circuit-switched (CS) network and an Internet Protocol (IP) multimedia subsystem (IMS) network. In one illustrative technique, a SIP Register message is sent from a mobile communication device to the IMS network for registration of the mobile device. A SIP 200 OK message is received by the mobile device from the IMS network in response to sending the SIP Register message. The SIP 200 OK message has one or more variable call parameters or a network address at which to obtain the variable call parameters. The variable call parameters may include an E.164 number which may be dynamically assigned to the mobile device by the IMS network, and/or a time or timer value which defines a time period for which the E.164 number remains assigned to the mobile device. Other information may be included such as preferred access network/technology information. The variable call parameters are stored in memory of the mobile device and utilized for processing each one of a plurality of SIP calls involving the mobile device. After registration, the mobile device may initialize a timer with the timer value, run the timer and, when processing a SIP call, cause a CS call setup message which includes the E.164 number to be sent to the IMS network for routing of the call if the timer has not yet expired. If the timer has expired, the mobile device may refrain from utilizing the deassigned E.164 number in the CS call setup message and alternatively obtain and utilize a new E.164 number or an altogether different technique for processing of the SIP call. Alternative techniques for obtaining parameters and formatting the data are also described. | 10-30-2008 |
20090041010 | Communication Diversion with a Globally Routable User Agent Uniform Resource Identifier System and Method - A method for diverting a Session Initiation Protocol (SIP) message is provided. The method includes using at least one Globally Routable User Agent Uniform Resource Identifier (GRUU) to determine a recipient to which the SIP message is diverted, and concealing an identity present in the SIP message. | 02-12-2009 |
20090041018 | System and Method for Configuring and Executing Communication Diversion with a Globally Routable User Agent Uniform Resource Identifier - A method for diverting a Session Initiation Protocol (SIP) message is provided. The method includes using at least one Globally Routable User Agent Uniform Resource Identifier (GRUU) to determine a recipient to which the SIP message is diverted. | 02-12-2009 |
20090046655 | Mobility Mechanism for Service Continuity - A system comprising an inter-RAT/inter-network redundancy controller (IRC) is provided. The IRC is configured to communicate with a source gateway in communication with a source radio access network (RAN) using a first radio access technology (RAT). The IRC is further configured to communicate with a target gateway in communication with a target RAN using a second RAT. The IRC is further configured to promote a handover of a user equipment from the source RAN connected to the source gateway to the target RAN connected to the target gateway when the source gateway fails. | 02-19-2009 |
20090052441 | System and Method for Managing a Circuit Switched Call using Alternative Signaling at the Establishment of a Successful Session Set-up - A method for providing a user agent (UA) with configuration data for a subsequent session is provided. The method includes the UA sending a first setup message over a first control signalling to control a second control signalling. The method further includes the UA sending a second setup message via the second control signalling, the second setup message initiating procedures to establish a circuit switched-based bearer. The method further includes a network component sending the UA a control message via the first control signalling indicating that a session has been established, the control message containing information related to configuration data for a subsequent session. | 02-26-2009 |
20090068996 | System and Method for Sharing a SIP Communication Service Identifier - A method for providing a user agent (UA) with service identification data. The method includes an application server (AS) transmitting Session Initiation Protocol (SIP) data. The SIP data comprises an identifier of the AS and a service identifier for at least one service supported by the AS. The method further includes the UA receiving the SIP data. | 03-12-2009 |
20090104899 | System and Method for Communication Diversion Notification - A node and method for communication diversion and communication diversion notification is provided. The node has a component configured to receive notification about a communication diversion related to an incoming communication corresponding to only those communication diversions which match criteria for at least one specific reason to be notified, wherein the notification includes a diversion reason element that is locale-independent encoded. | 04-23-2009 |
20090190577 | Providing Session Initiation Protocol Request Contents Method and System - An embodiment provides a user equipment that includes a processor configured to receive a Session Initiation Protocol (SIP) NOTIFY message transmitted by a network component as a result of a registration event. The SIP NOTIFY message contains at least a portion of information included in a first SIP message sent between a first user equipment and the network component. Another embodiment provides method and apparatus for a network node to determine whether filter criteria include one or more indicators that specify the need for information, and including in a second SIP message the information specified by the one or more indicators. | 07-30-2009 |
20090207817 | Policy-Based Data Routing For A Multi-Mode Device - Communication devices capable of at least two communication modes (e.g. WLAN, WMAN and WWAN and/or wired modes) can be configured to optimize communications using a policy-based mechanism to configure connections and routes. A rules engine evaluates its policies on a state change (e.g. network availability, time of day, etc.) to configure a routing table and, together with communication APIs, provides an appropriate connection to an application for its respective communications. Policies may be responsive to various factors such as Radio Access Technology (high/low bandwidth), cost, presence, time of day, location, application type and quality of service (QoS) requirements among others to optimize communications. | 08-20-2009 |
20090210478 | System and Method for Resolving Extensions for the SIP Session Policy Framework - A method for providing policy information to a user agent. The method comprises the user agent transmitting information related to a plurality of uniform resource identifier (URI) schemes that the user agent supports for communication over a policy channel and transmitting information related to a plurality of representations of the policy information that the user agent supports. The method further includes the user agent receiving an indication of a selection of at least one of the plurality of URI schemes and a selection of at least one of the plurality of versions of the policy information. The method further includes the user agent obtaining policy information using at least one of the selected representations of the policy information and using at least one of the selected URI schemes. | 08-20-2009 |
20090210538 | System and Method for Indicating Supported Session Policy URI Schemes Extensions - A method for negotiating a communication protocol for a policy channel. The method comprises a user agent transmitting information related to a plurality of uniform resource identifier (URI) schemes that the user agent supports for communication over the policy channel. The method further comprises the user agent receiving an indication of a selection of one or more of the plurality of URI schemes. The method further comprises the user agent using at least one communication protocol identified by one of the selected URI scheme for communication over the policy channel. | 08-20-2009 |
20090258633 | Differentiated Message Delivery Notification - A user equipment (UE) is disclosed. The UE comprises a processor configured to transmit a session initiation protocol (SIP) SUBSCRIBE method request that comprises at least one filter criteria used for selecting specific messages and selecting the information about the messages, where each of the messages is directed to a user identity associated with the UE. | 10-15-2009 |
20090268726 | Methods to Route a Bearer via Circuit Switching to an Internet Protocol Multimedia System Node using Session Initiation Protocol Contact Header - A method of call routing is provided. The method comprises receiving a session initiation protocol (SIP) INVITE message that contains a uniform resource identifier (URI) of a called party and that identifies that a bearer for a call to the called party is to be set-up at least in part over the circuit switching domain. The method also comprises determining a digit string associated with the URI. The method also comprises sending a SIP informational response message having a contact header that contains information based on the digit string. | 10-29-2009 |
20090296688 | Coding and Behavior when Receiving an IMS Emergency Session Indicator from Authorized Source - A method is provided for a user equipment (UE) to respond to an emergency-related message sent to the UE. The method comprises the UE receiving a first message containing an indicator indicating that an emergency-related request has been made, the UE recognizing the indicator as an indication that the emergency-related request is related to an emergency, and the UE sending a second message containing emergency-related information about itself. | 12-03-2009 |
20090296689 | Privacy-Related Requests for an IMS Emergency Session - A network component is provided that includes a processor configured, upon the network component receiving an IMS (Internet Protocol Multimedia Subsystem) emergency call from a user equipment (UE), to detect in the emergency call an indicator requesting the network component to restrict presentation of private information related to the UE. The processor is further configured, when the indicator is present, to transmit the emergency call without at least some of the private information to a Public Safety Answering Point (PSAP). | 12-03-2009 |
20090298458 | Updating a Request Related to an IMS Emergency Session - A network component is provided that includes a processor configured to inspect requests sent to the network component to determine if the requests are related to emergencies. If one of the requests is determined to relate to an emergency, the processor is further configured, based on configurations and regulator policies, to update the request. | 12-03-2009 |
20090316684 | Method for a Network Component to Route a Communication Session - A network node is provided. The network node includes a component configured to use a value in a Session Initiation Protocol message. The value indicates a supported transport addressing scheme and is used to determine whether to route a related communication session through a transport addressing scheme translation component. | 12-24-2009 |
20090319691 | Method for indicating supported IP versions and reaching a device that supports compatible IP versions with SIP - A method for conveying information related to a transport addressing scheme is provided. A user agent (UA) is also provided that is configured to convey information related to a transport addressing scheme. The UA includes a processor configured to include in a Session Initiation Protocol (SIP) message an indicator related to the transport addressing scheme. | 12-24-2009 |
20100177771 | System and Method for Originating a Call Via a Circuit-Switched Network from a User Equipment Device - Methods and apparatus for originating a Session Initiation Protocol (SIP) call from a user equipment (UE) device in a network environment including a circuit-switched (CS) network and an IP multimedia subsystem (IMS) network to a called party are disclosed. In one illustrative example, when the SIP call is originated by the UE device in the CS network domain, a SIP Invite message which includes a SIP Uniform Resource Indicator (URI) or Tel URI of the called party is sent from the UE device to the IMS network (e.g. to an application server (AS) node). At the AS node, a pool of E.164 numbers are maintained as IP multimedia routing numbers (IMRNs) which are utilized for mapping to or otherwise associating with called party URIs. Thus, the AS node dynamically allocates a select E.164 number with respect to the called party's URI received from the UE device, and returns it to the UE device in a SIP Response message, e.g., a SIP 380 (Alternative Service) message. Subsequently, the dynamically-allocated E.164 number is sent from the UE device in a call setup message for identification of the URI at the AS node, via the mapping, so that the SIP call may be properly routed towards the called party. | 07-15-2010 |
20120014327 | Policy-Based Data Routing for a Multi-Mode Device - Communication devices capable of at least two communication modes (e.g. WLAN, WMAN and WWAN and/or wired modes) can be configured to optimize communications using a policy-based mechanism to configure connections and routes. A rules engine evaluates its policies on a state change (e.g. network availability, time of day, etc.) to configure a routing table and, together with communication APIs, provides an appropriate connection to an application for its respective communications. Policies may be responsive to various factors such as Radio Access Technology (high/low bandwidth), cost, presence, time of day, location, application type and quality of service (QoS) requirements among others to optimize communications. | 01-19-2012 |
20120063419 | Mobility Mechanism for Service Continuity with Core Element Failure - A system comprising an inter-RAT/inter-network redundancy controller (IRC) is provided. The IRC is configured to communicate with a source gateway in communication with a source radio access network (RAN) using a first radio access technology (RAT). The IRC is further configured to communicate with a target gateway in communication with a target RAN using a second RAT. The IRC is further configured to promote a handover of a user equipment from the source RAN connected to the source gateway to the target RAN connected to the target gateway when the source gateway fails. | 03-15-2012 |
20120265849 | System and Method for Sharing a SIP Communication Service Identifier - A method for providing a user agent (UA) with service identification data. The method includes an application server (AS) transmitting Session Initiation Protocol (SIP) data. The SIP data comprises an identifier of the AS and a service identifier for at least one service supported by the AS. The method further includes the UA receiving the SIP data. | 10-18-2012 |